Fire Eel and Peacock Cichlid Compatibility Overview
Fire Eel and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges do not meet: Fire Eel wants 6.0โ7.0 and Peacock Cichlid wants 7.5โ9.0. Review the behavior and water details before deciding whether to attempt the pairing.
| Factor | Fire Eel | Peacock Cichlid | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 73โ84ยฐF | โ 75โ82ยฐF |
| pH Range | 6.0โ7.0 | 7.5โ9.0 | โ No overlap |
| Temperament | semi | semi | โ ๏ธ Monitor |
| Adult Size | 39.4 in | 5.1 in | โ 8ร difference |
| Min. Group | 1+ | 4+ | See below |
| Min. Tank Size | 100 gallons (for both species) | โ | |
Compatibility Positives
Incompatibility Reasons
Species Profiles
Fire Eel โ Mastacembelus erythrotaenia
The Fire Eel is a stunning, red-bottomed species that requires a spacious tank. They are peaceful bottom feeders and do best in a well-planted, mature aquarium. With a moderate activity level, they can be a great addition to a community tank, but their size and diet may be incompatible with smaller fish.
Peacock Cichlid โ Aulonocara stuartgranti
The Peacock Cichlid, Aulonocara nyassae, is a stunning fish with vibrant blue and yellow colors. These fish are known for their aggression and require a mature and well-maintained tank. They are best kept in pairs or in a species-specific tank. Careful attention must be given to water parameters and tank setup to ensure their health and well-being.
Frequently Asked Questions
Can Fire Eel live with Peacock Cichlid?
Generally not recommended. Fire Eel and Peacock Cichlid are generally not recommended to be housed together. The adult size gap creates a meaningful predation risk. Their pH ranges do not meet: Fire Eel wants 6.0โ7.0 and Peacock Cichlid wants 7.5โ9.0. Review the behavior and water details before deciding whether to attempt the pairing.
What tank size do I need for Fire Eel and Peacock Cichlid together?
A minimum of 100 gallons is recommended for keeping Fire Eel and Peacock Cichlid together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Fire Eel and Peacock Cichlid?
75โ82ยฐF โ inside Fire Eel's 75โ82ยฐF and Peacock Cichlid's 73โ84ยฐF.
Is a Fire Eel aggressive toward a Peacock Cichlid?
The adult size gap creates a meaningful predation risk.
Related Compatibility Guides
Tank Size for Fire Eel and Peacock Cichlid
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 114 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 180 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 220 gal | Best when keeping larger schools or reducing territorial pressure. |